package com.rpc.demo.common.util;

/**
 * @Author: ZhaoJie
 * @Date: 2022/4/7
 * @Description:
 * @Modify: ===================================================
 * Modifier        Modifytime        Description
 * ===================================================
 */

public class StringUtil {
    /**
     * @author: zhaojie
     * @date: 2022/4/7
     * @description: 将首字母变成小写
     * @method: lowerFirst
     * @param null
     * @class:  StringUtil
     * @return:
     */
    public static String lowerFirst(String oldStr) {

        char[]chars = oldStr.toCharArray();

        chars[0] += 32;

        return String.valueOf(chars);

    }
}
